Disclosed is a scattered light turbidimeter, comprising a light source, a light transmission assembly, a reaction cup (2), an optical receiver (3), a detection unit and an angle adjustment device, wherein the optical receiver (3) is mounted on the angle adjustment device, the angle adjustment device is used for adjusting a receiving angle of the optical receiver (3), light rays from the light source enter the reaction cup (2) through the light transmission assembly, the optical receiver (3) receives scattered light scattered by a solution in the reaction cup (2) and transmits the scattered light to the detection unit, and the detection unit is used for detecting a signal value of the scattered light. The receiving angle of the receiver of the scattered light turbidimeter can be adjusted, and a scattered light receiving angle can be adjusted according to different detection projects and different light scattering characteristics.